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Discussion Starter · #1 · (Edited)
I am planning on getting a new d-max but i am unsure if i should get the new allison or a 6 speed i am going to mod it with a chip but am un sure which tranny to go with does any one know how much power the new allison can hold. My dad has an 03 d-max with the allison with a cat-back exhaust and a banks six gun tuner and with the tuner up on six the tranny starts to slip.
 
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